nixpkgs/pkgs/development/libraries/qt-5/5.5/qtmultimedia.nix

{ qtSubmodule, qtbase, qtdeclarative, pkgconfig
, alsaLib, gstreamer, gst-plugins-base, libpulseaudio
}:

qtSubmodule {
  name = "qtmultimedia";
  qtInputs = [ qtbase qtdeclarative ];
  buildInputs = [
    pkgconfig alsaLib gstreamer gst-plugins-base libpulseaudio
  ];
  qmakeFlags = [ "GST_VERSION=1.0" ];
  postFixup = ''
    fixQtModuleCMakeConfig "Multimedia"
    fixQtModuleCMakeConfig "MultimediaWidgets"
  '';
}